patch 8.1.1473: new resolve() implementation causes problem for plugins

Problem:    New resolve() implementation causes problem for plugins.
Solution:   Only resolve a resparse point after checking it is needed. (Ken
            Takata, closes #4492)
diff --git a/src/version.c b/src/version.c
index ca2e174..cd138ab 100644
--- a/src/version.c
+++ b/src/version.c
@@ -768,6 +768,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1473,
+/**/
     1472,
 /**/
     1471,